This is a list of various

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

invertebrate Invertebrates are a paraphyletic group of animals that neither possess nor develop a vertebral column (commonly known as a ''backbone'' or ''spine''), derived from the notochord. This is a grouping including all animals apart from the chordate ...

s, animals without a backbone, that are commonly found in

brackish aquarium A brackish-water aquarium is an aquarium where the water is brackish (semi-salty). The range of "saltiness" varies greatly, from near freshwater to near marine and is often referred to as specific gravity (SG) or salinity. Brackish water aquaria i ...

s kept by hobby

aquarist An aquarist is a person who manages aquariums, either professionally or as a hobby. They typically care for aquatic animals, including fish and marine invertebrates. Some may care for aquatic mammals. Aquarists often work at public aquariums. They ...

s. Some species are intentionally collected for their desirable aesthetic characteristics. Others are kept to serve a functional role such as consuming

algae Algae (; singular alga ) is an informal term for a large and diverse group of photosynthetic eukaryotic organisms. It is a polyphyletic grouping that includes species from multiple distinct clades. Included organisms range from unicellular mic ...

in the aquarium. Some species are present only incidentally or are pest species.

Arthropod Arthropods (, (gen. ποδός)) are invertebrate animals with an exoskeleton, a Segmentation (biology), segmented body, and paired jointed appendages. Arthropods form the phylum Arthropoda. They are distinguished by their jointed limbs and Arth ...
s

Crustacean Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean group ...
s

Fiddler Crab, ''

Uca pugnax The fiddler crab or calling crab may be any of more than one hundred species of semiterrestrial marine crabs in the family Ocypodidae, well known for their sexually dimorphic claws; the males' major claw is much larger than the minor claw, while ...

''
'' Perisesarma bidens'', Red Clawed Crab
Amano Shrimp/Yamato Shrimp, ''

Caridina multidentata ''Caridina multidentata'' is a species of shrimp in the family Atyidae. It is native to Japan and Taiwan.De Grave, S., Shy, J. & Cai, X. 2013''Caridina multidentata''.The IUCN Red List of Threatened Species 2013. Downloaded on 14 June 2016. Its ...

'' Grass Shrimp/Glass Shrimp,

Palaemonetes paludosus ''Palaemonetes paludosus'', known as ghost shrimp, glass shrimp, and eastern grass shrimp, is a species of freshwater shrimp from the southeastern United States. Description ''Palaemonetes paludosus'' is up to long and largely transparent. By ...

Blue Crab,

Callinectes sapidus ''Callinectes sapidus'' (from the Ancient Greek ,"beautiful" + , "swimmer", and Latin , "savory"), the blue crab, Atlantic blue crab, or regionally as the Chesapeake blue crab, is a species of crab native to the waters of the western Atlantic O ...

Mollusca Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is esti ...

Gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...
s

Olive Nerite, ''

Vittina usnea ''Vittina'' is a genus of brackish water and freshwater snails with an operculum, aquatic gastropod mollusks in the subfamily Neritininae of the family Neritidae, the nerites. Sartori, André F. (2014). ''Vittina'' H. B. Baker, 1924. In: Moll ...

Cephalopod A cephalopod is any member of the molluscan class Cephalopoda (Greek plural , ; "head-feet") such as a squid, octopus, cuttlefish, or nautilus. These exclusively marine animals are characterized by bilateral body symmetry, a prominent head ...
s

Lolliguncula ''Lolliguncula'' is a genus of squid from the family Loliginidae from the eastern Pacific and western Atlantic, known as brief squid. The genus is divided into two subgenera ''Lolliguncula'' and ''Loliolopsis''. They are rather small squids with ...

'' is the only genus of cephalopods that is known to exist in brackish water. They can tolerate as low as 8.5 PPM of salt. * Subgenus ''Loliopsis'' ** Dart squid, ''

Lolliguncula diomedea ''Lolliguncula'' is a genus of squid from the family Loliginidae from the eastern Pacific and western Atlantic, known as brief squid. The genus is divided into two subgenera ''Lolliguncula'' and ''Loliolopsis''. They are rather small squids with ...

'' * Subgenus ''Lolliguncula'' ** Argus brief squid or Argus thumbstall squid, ''

Lolliguncula argus ''Lolliguncula'' is a genus of squid from the family Loliginidae from the eastern Pacific and western Atlantic, known as brief squid. The genus is divided into two subgenera ''Lolliguncula'' and ''Loliolopsis''. They are rather small squids with ...

'' ** Atlantic brief squid or Atlantic thumbstall squid, ''

Lolliguncula brevis ''Lolliguncula brevis'', or the Atlantic brief squid, is a small species of squid in the Loliginidae family. It is found in shallow parts of the western Atlantic Ocean. Distribution The Atlantic brief squid occurs most frequently in shallow wate ...

'' ** Panama brief squid or Panama thumbstall squid, ''

Lolliguncula panamensis ''Lolliguncula'' is a genus of squid from the family Loliginidae from the eastern Pacific and western Atlantic, known as brief squid. The genus is divided into two subgenera ''Lolliguncula'' and ''Loliolopsis''. They are rather small squids with ...

References

{{DEFAULTSORT:List Of Brackish Aquarium Invertebrate Species Fishkeeping Lists of invertebrates Brackish aquarium invertebrates

Arthropod Arthropods (, (gen. ποδός)) are invertebrate animals with an exoskeleton, a Segmentation (biology), segmented body, and paired jointed appendages. Arthropods form the phylum Arthropoda. They are distinguished by their jointed limbs and Arth ...s

Crustacean Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean group ...s